For a $0.1 \, M$ aqueous solution of a weak acid undergoing $2\%$ ionization,the concentration of $[H^{+}]$ and $[OH]^{-}$ will be respectively: (Ionic product of water $= 1 \times 10^{-14}$)

• A
  $2 \times 10^{-3} \, M$ and $5 \times 10^{-12} \, M$
• B
  $1 \times 10^{-3} \, M$ and $3 \times 10^{-11} \, M$
• C
  $0.02 \times 10^{-3} \, M$ and $5 \times 10^{-11} \, M$
• D
  $3 \times 10^{-2} \, M$ and $4 \times 10^{-13} \, M$